Rouge-feeding apparatus



June 29 1926.

1,590,864 J. SODERBERG ROUGE FEEDING APPARATUS Filed July 9, 1925 //V VENTOI? Patented June 29, 1926.

UNITED STATES 1,590,864 PATENT OFFICE.

JACOB SODERBERG, OF PITTSBURGH, PENNSYLVANIA, ASSIGNOR TO PITTSBURGH PLATE' GLASS COMPANY, A CORPORATION OF PENNSYLVANIA.

ROUGE-FEEDING APPARATUS.

Application filed July 9, 1925. Serial No. 42,526.

The invention relates to an apparatus. for applying rouge to the machines employed in polishing plate glass. Theapparatus may be used in a polishing system in which the 6 glass is carried on cars or tables beneath a series of polishing runners, or it may be used in a system in whichthe glass is placed upon a driven rotating table, upon which the runners rest as idlers. The invention is illustrated as applied to the class first mentioned. It has for its objects an improved system in which the clogging of the discharge pipes due to the settling of the rouge is reduced or entirely eliminated and in which the'labor of cleaning out the outlet pipes" and fittings is accomplished with a minimum expenditure. of time and labor. One embodiment of the invention is illustrated in the accompanying drawings where- Figure 1 is a diagrammatic assembly view showing the a paratus. And Fig. 2 is an enlarged detai section showing the valve arrangement.

Referring to Fig. 1, the reference numeral 1 indicates the spindle of the runner 2 in which the polishing blocks 3 are mounted, such spindle being driven from suitable power means, not shown. This runner constitutes one of aseries mounted above a series of tables or cars 4 carried upon a track 5 and adapted to be moved continuously beneath the series of runners. These tables carry sheets of glass 6 which have been ground and which are to be polished by carrying them beneath the polishing-runners.

Extending longitudinally of the track is a conduitv 7 through which a mixture of rouge and water under pressure is circulated,

and in parallel with this conduit is a water line 8 containing water under pressure con siderably in excess of the pressure in the conduit 7. The arrangement is such that a t mixture of rouge and water may be supplied from the conduit 7 to the funnel 9 and thence through the pipe 10 to the center of the runner, or if desired, the flow of this mixture may be cut off and water alone supplied to the funnel from the water line 8. The arrangement of valves and fittings will be seen by reference to Fig. 2. As hereshown, the rouge conduit 7 is provided with a T 11 and leading through the side of this T is an outlet pipe 12. This pipe is provided with a cut oil valve 13 and has its inner end 14.

extending into the conduit 7 to approximately the center pointthereof. The flow through the pipe 12 is regulated by the needle valve 15 mounted in the casing 16 and provided with" the operating handle 17. This valve provides a means for regulating the flow of mixture so that the amount is just 'suflicient to give the desired drag between the polishing blocks and the glass, the valve being maintained in its adjusted position after the proper point has been determined by trial. The. extension of the pipe 12 into the conduit 7 to a pointadjacent the center thereof is desirable as this arrangement tends to prevent a clogging of the pipe due to the settling of the rouge. This clogging ordinarily occurs at the end of the small p1pe lea ing from the conduit, when such pipe terminates at the wall of the conduit.

On the other side of the valve casing 16, connection is made with the water line 8 by means of the pipe 18 carrying the cut off valve 19, which valve is maintained in the position shown, while the rouge mixture 1s being fed to the table from the conduit 7. When it is desired to supply only water to the table, this is accomplished by closing the valve 13 and opening the valve 19, such operations being carried out when it is desired to clean the polishing felts of the runner by supplying only water to the table. Another important function is also accomplished by the water line connection, such function being the cleaning out of the valve casing 16 and the pipe 12 from time to time as these parts gradually become filled with rouge which settles out of the mixture. Since the pressure in the water line is greater than that in a rouge conduit, the opening of the valve 19 causes a flow of water through the casing 16 and through the pipe 12 into the rouge conduit, a relatively short period of flow being required in order to clean out these parts. This is made more effective by closing the outlet 20 from the casing 16 by the finger of the operator or by screwing down the valve 14, the latter rocedure not being as desirable as the rst, since this requires a resetting of the valve 15. In this manner, the small pipes and fittings may be thoroughly cleaned out at such intervals as may be found necessary by the use of the apparatus, thus avoiding the necessity of cleaning out the pipes-with wires or other devices as is now done, which requires a considerable expenditure of time and labor.- The rouge mixture is preferably continuously circulated through the conduit 7, but this 18 not essential, the invention being equally applicable to any rou e feeding stem in which the mixture is ed. to the conduit from a tank.

What I claim is:

1. In combination with a polishing machine, a conduit containing a mixture of rouge and water under pressure, and a discharge outlet for conducting the mixture to said. machine including a pipe passing through the wall of the conduit and having its inner end extended into such conduit to a point remote from said wall.

2. In combination with a polishingmachine, a conduit containing a mixture of rouge and water under pressure, and a discharge outlet for conducting the mixture to said machine including a pipe passing through the wall of the conduit and having the inner end extended into such conduit to substantially the center of said conduit.

3. In combination with a polishing machine, a conduit containing a mixture of rouge and water under pressure, a water pipe adjacent the conduit containing water under higher pressure than the pressure of the mixture in the conduit, a connectin pipe extending between the conduit 'an water pipe and having intermediate its ends a discharge outlet for en plying said mixture to the polishing mac me, a valve controlling said outlet, and another valve in the connecting pipe between the first valve and the water plpe.

In testimony whereof, I have hereunto sub- Tgiged my name this sixth day of July,

JACOB SODERBERG. 

